Risk | High |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2023-39804 |
CWE-ID | CWE-121 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software |
Amazon Linux AMI Operating systems & Components / Operating system tar Operating systems & Components / Operating system package or component |
Vendor | Amazon Web Services |
Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU84035
Risk: High
CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2023-39804
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the xattr_decoder() function in xheader.c. A remote attacker can trick the victim to open a specially crafted tar/pax archive with an overly long xattr key, trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationUpdate the affected packages:
aarch64:Vulnerable software versions
tar-debuginfo-1.34-1.amzn2023.0.4.aarch64
tar-1.34-1.amzn2023.0.4.aarch64
tar-debugsource-1.34-1.amzn2023.0.4.aarch64
src:
tar-1.34-1.amzn2023.0.4.src
x86_64:
tar-debuginfo-1.34-1.amzn2023.0.4.x86_64
tar-1.34-1.amzn2023.0.4.x86_64
tar-debugsource-1.34-1.amzn2023.0.4.x86_64
Amazon Linux AMI: All versions
tar: before 1.34-1
CPE2.3http://alas.aws.amazon.com/AL2023/ALAS-2024-475.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.